/*
 * Copyright (c) 2006, 2023, webrx.cn All rights reserved.
 *
 */
package cn.ex;

/**
 * <p>Project: jse2302 - DbUtil
 * <p>Powered by webrx On 2023-06-16 10:02:37
 * <p>Created by IntelliJ IDEA
 *
 * @author  webrx [webrx@126.com]
 * @version 1.0
 * @since 17
 */
public abstract class DbUtil {
    public abstract void connect(String str);
    public abstract void delete(int id);
    public abstract void save();
    public abstract void query();
}
